**********************************************************************
* *
* I E R S B U L L E T I N - A *
* *
* Rapid Service/Prediction of Earth Orientation *
**********************************************************************
24 August 2006 Vol. XIX No. 034
______________________________________________________________________
GENERAL INFORMATION:
To receive this information electronically, contact:
ser7@maia.usno.navy.mil or use
MJD = Julian Date - 2 400 000.5 days
UT2-UT1 = 0.022 sin(2*pi*T) - 0.012 cos(2*pi*T)
- 0.006 sin(4*pi*T) + 0.007 cos(4*pi*T)
where pi = 3.14159265... and T is the date in Besselian years.
TT = TAI + 32.184 seconds
DUT1= (UT1-UTC) transmitted with time signals
= +0.2 seconds beginning 27 April 2006 at 0000 UTC
Beginning 1 January 2006:
TAI-UTC(BIPM) = 33.000 000 seconds
**********************************************************************
* No leap second will be introduced into UTC on December 31, 2006. *
* Last positive leap second introduced in UTC on December 31, 2005. *
* *
* See notice at the end of this Bulletin A for more details. *
**********************************************************************
________________________________________________________________________
The contributed observations used in the preparation of this Bulletin
are available at . The
contributed analysis results are based on data from Very Long Baseline
Interferometry (VLBI), Satellite Laser Ranging (SLR), the Global
Positioning System (GPS) satellites, Lunar Laser Ranging (LLR), and
meteorological predictions of variations in Atmospheric Angular
Momentum (AAM).
________________________________________________________________________
COMBINED EARTH ORIENTATION PARAMETERS:
IERS Rapid Service
MJD x error y error UT1-UTC error
" " " " s s
6 8 18 53965 .09943 .00002 .25702 .00003 .175106 .000015
6 8 19 53966 .09814 .00003 .25623 .00002 .175276 .000015
6 8 20 53967 .09666 .00003 .25556 .00002 .175462 .000013
6 8 21 53968 .09521 .00002 .25514 .00002 .175502 .000014
6 8 22 53969 .09404 .00002 .25491 .00002 .175358 .000014
6 8 23 53970 .09297 .00002 .25461 .00001 .175048 .000011
6 8 24 53971 .09169 .00002 .25412 .00001 .174521 .000010
_______________________________________________________________________
PREDICTIONS:
The following formulas will not reproduce the predictions given below,
but may be used to extend the predictions beyond the end of this table.
x = .0514 + .1754 cos A + .0318 sin A - .1324 cos C - .1432 sin C
y = .3534 + .0349 cos A - .1538 sin A - .1432 cos C + .1324 sin C
UT1-UTC = .1156 - .00061 (MJD - 53976) - (UT2-UT1)
where A = 2*pi*(MJD-53971)/365.25 and C = 2*pi*(MJD-53971)/435.
TAI-UTC(MJD 53972) = 33.0
The accuracy may be estimated from the expressions:
S x,y = 0.00068 (MJD-53971)**0.80 S t = 0.00025 (MJD-53971)**0.75
Estimated accuracies are: Predictions 10 d 20 d 30 d 40 d
Polar coord's 0.004 0.007 0.010 0.013
UT1-UTC 0.0014 0.0024 0.0032 0.0040
MJD x(arcsec) y(arcsec) UT1-UTC(sec)
2006 8 25 53972 0.0904 0.2535 0.17375
2006 8 26 53973 0.0890 0.2528 0.17289
2006 8 27 53974 0.0877 0.2521 0.17207
2006 8 28 53975 0.0863 0.2514 0.17135
2006 8 29 53976 0.0849 0.2507 0.17073
2006 8 30 53977 0.0834 0.2500 0.17025
2006 8 31 53978 0.0820 0.2493 0.16986
2006 9 1 53979 0.0805 0.2486 0.16958
2006 9 2 53980 0.0789 0.2479 0.16942
2006 9 3 53981 0.0774 0.2472 0.16929
2006 9 4 53982 0.0758 0.2465 0.16907
2006 9 5 53983 0.0742 0.2459 0.16861
2006 9 6 53984 0.0726 0.2453 0.16782
2006 9 7 53985 0.0710 0.2447 0.16666
2006 9 8 53986 0.0693 0.2441 0.16519
2006 9 9 53987 0.0676 0.2436 0.16358
2006 9 10 53988 0.0659 0.2431 0.16201
2006 9 11 53989 0.0641 0.2426 0.16065
2006 9 12 53990 0.0624 0.2421 0.15960
2006 9 13 53991 0.0606 0.2417 0.15887
2006 9 14 53992 0.0588 0.2413 0.15839
2006 9 15 53993 0.0569 0.2409 0.15804
2006 9 16 53994 0.0551 0.2405 0.15769
2006 9 17 53995 0.0532 0.2402 0.15724
2006 9 18 53996 0.0513 0.2399 0.15662
2006 9 19 53997 0.0493 0.2396 0.15579
2006 9 20 53998 0.0474 0.2393 0.15476
2006 9 21 53999 0.0454 0.2391 0.15355
2006 9 22 54000 0.0434 0.2389 0.15223
2006 9 23 54001 0.0414 0.2388 0.15085
2006 9 24 54002 0.0394 0.2386 0.14948
2006 9 25 54003 0.0374 0.2385 0.14816
2006 9 26 54004 0.0353 0.2384 0.14696
2006 9 27 54005 0.0332 0.2384 0.14589
2006 9 28 54006 0.0311 0.2384 0.14495
2006 9 29 54007 0.0290 0.2384 0.14413
2006 9 30 54008 0.0269 0.2384 0.14336
2006 10 1 54009 0.0247 0.2385 0.14255
2006 10 2 54010 0.0225 0.2386 0.14158
2006 10 3 54011 0.0204 0.2387 0.14034
2006 10 4 54012 0.0182 0.2389 0.13877
2006 10 5 54013 0.0160 0.2391 0.13689
2006 10 6 54014 0.0137 0.2393 0.13479
2006 10 7 54015 0.0115 0.2396 0.13266
2006 10 8 54016 0.0093 0.2399 0.13069
2006 10 9 54017 0.0070 0.2402 0.12904
2006 10 10 54018 0.0047 0.2406 0.12773
2006 10 11 54019 0.0025 0.2410 0.12675
2006 10 12 54020 0.0002 0.2414 0.12596
2006 10 13 54021 -0.0021 0.2419 0.12525
2006 10 14 54022 -0.0044 0.2424 0.12448
2006 10 15 54023 -0.0067 0.2429 0.12359
2006 10 16 54024 -0.0090 0.2435 0.12253
2006 10 17 54025 -0.0113 0.2441 0.12129
2006 10 18 54026 -0.0136 0.2448 0.11990
2006 10 19 54027 -0.0159 0.2454 0.11839
2006 10 20 54028 -0.0183 0.2461 0.11682
2006 10 21 54029 -0.0206 0.2469 0.11525
2006 10 22 54030 -0.0229 0.2477 0.11376
2006 10 23 54031 -0.0252 0.2485 0.11239
2006 10 24 54032 -0.0275 0.2493 0.11119
2006 10 25 54033 -0.0299 0.2502 0.11016
2006 10 26 54034 -0.0322 0.2511 0.10928
2006 10 27 54035 -0.0345 0.2521 0.10848
2006 10 28 54036 -0.0368 0.2531 0.10767
2006 10 29 54037 -0.0391 0.2541 0.10676
2006 10 30 54038 -0.0414 0.2552 0.10563
2006 10 31 54039 -0.0436 0.2563 0.10422
2006 11 1 54040 -0.0459 0.2574 0.10250
2006 11 2 54041 -0.0482 0.2586 0.10054
2006 11 3 54042 -0.0504 0.2598 0.09846
2006 11 4 54043 -0.0527 0.2611 0.09644
2006 11 5 54044 -0.0549 0.2623 0.09465
2006 11 6 54045 -0.0571 0.2637 0.09320
2006 11 7 54046 -0.0593 0.2650 0.09209
2006 11 8 54047 -0.0615 0.2664 0.09125
2006 11 9 54048 -0.0637 0.2678 0.09055
2006 11 10 54049 -0.0658 0.2692 0.08986
2006 11 11 54050 -0.0680 0.2707 0.08908
2006 11 12 54051 -0.0701 0.2723 0.08816
2006 11 13 54052 -0.0722 0.2738 0.08707
2006 11 14 54053 -0.0743 0.2754 0.08584
2006 11 15 54054 -0.0763 0.2770 0.08451
2006 11 16 54055 -0.0784 0.2787 0.08312
2006 11 17 54056 -0.0804 0.2804 0.08175
2006 11 18 54057 -0.0824 0.2821 0.08046
2006 11 19 54058 -0.0843 0.2838 0.07931
2006 11 20 54059 -0.0862 0.2856 0.07834
2006 11 21 54060 -0.0882 0.2874 0.07756
2006 11 22 54061 -0.0900 0.2893 0.07697
2006 11 23 54062 -0.0919 0.2911 0.07650
2006 11 24 54063 -0.0937 0.2930 0.07606
2006 11 25 54064 -0.0955 0.2950 0.07555
2006 11 26 54065 -0.0972 0.2969 0.07487
2006 11 27 54066 -0.0990 0.2989 0.07393
2006 11 28 54067 -0.1007 0.3010 0.07271
2006 11 29 54068 -0.1023 0.3030 0.07125
2006 11 30 54069 -0.1039 0.3051 0.06965
2006 12 1 54070 -0.1055 0.3072 0.06806
2006 12 2 54071 -0.1071 0.3093 0.06663
2006 12 3 54072 -0.1086 0.3115 0.06546
2006 12 4 54073 -0.1101 0.3137 0.06461
2006 12 5 54074 -0.1115 0.3159 0.06404
2006 12 6 54075 -0.1129 0.3181 0.06365
2006 12 7 54076 -0.1143 0.3204 0.06330
2006 12 8 54077 -0.1156 0.3227 0.06277
2006 12 9 54078 -0.1168 0.3250 0.06210
2006 12 10 54079 -0.1181 0.3273 0.06126
2006 12 11 54080 -0.1193 0.3296 0.06027
2006 12 12 54081 -0.1204 0.3320 0.05916
2006 12 13 54082 -0.1215 0.3344 0.05799
2006 12 14 54083 -0.1226 0.3368 0.05681
2006 12 15 54084 -0.1236 0.3392 0.05569
2006 12 16 54085 -0.1246 0.3417 0.05469
2006 12 17 54086 -0.1255 0.3442 0.05385
2006 12 18 54087 -0.1264 0.3466 0.05319
2006 12 19 54088 -0.1272 0.3491 0.05270
2006 12 20 54089 -0.1280 0.3516 0.05235
2006 12 21 54090 -0.1287 0.3542 0.05204
2006 12 22 54091 -0.1294 0.3567 0.05168
2006 12 23 54092 -0.1300 0.3593 0.05116
2006 12 24 54093 -0.1306 0.3618 0.05039
2006 12 25 54094 -0.1311 0.3644 0.04935
2006 12 26 54095 -0.1316 0.3670 0.04806
2006 12 27 54096 -0.1320 0.3696 0.04663
2006 12 28 54097 -0.1324 0.3722 0.04520
2006 12 29 54098 -0.1327 0.3749 0.04389
2006 12 30 54099 -0.1330 0.3775 0.04282
2006 12 31 54100 -0.1332 0.3801 0.04205
2007 1 1 54101 -0.1334 0.3828 0.04154
2007 1 2 54102 -0.1335 0.3854 0.04123
2007 1 3 54103 -0.1336 0.3881 0.04100
2007 1 4 54104 -0.1336 0.3908 0.04074
2007 1 5 54105 -0.1336 0.3934 0.04035
2007 1 6 54106 -0.1335 0.3961 0.03978
2007 1 7 54107 -0.1334 0.3988 0.03905
2007 1 8 54108 -0.1332 0.4014 0.03817
2007 1 9 54109 -0.1329 0.4041 0.03720
2007 1 10 54110 -0.1326 0.4068 0.03621
2007 1 11 54111 -0.1322 0.4095 0.03527
2007 1 12 54112 -0.1318 0.4121 0.03442
2007 1 13 54113 -0.1314 0.4148 0.03372
2007 1 14 54114 -0.1309 0.4175 0.03319
2007 1 15 54115 -0.1303 0.4201 0.03283
2007 1 16 54116 -0.1297 0.4228 0.03261
2007 1 17 54117 -0.1290 0.4254 0.03246
2007 1 18 54118 -0.1283 0.4281 0.03228
2007 1 19 54119 -0.1275 0.4307 0.03196
2007 1 20 54120 -0.1266 0.4333 0.03139
2007 1 21 54121 -0.1257 0.4360 0.03052
2007 1 22 54122 -0.1248 0.4386 0.02936
2007 1 23 54123 -0.1238 0.4412 0.02801
2007 1 24 54124 -0.1228 0.4437 0.02663
2007 1 25 54125 -0.1217 0.4463 0.02535
2007 1 26 54126 -0.1205 0.4489 0.02431
2007 1 27 54127 -0.1193 0.4514 0.02357
2007 1 28 54128 -0.1181 0.4540 0.02310
2007 1 29 54129 -0.1168 0.4565 0.02283
2007 1 30 54130 -0.1154 0.4590 0.02266
2007 1 31 54131 -0.1140 0.4614 0.02247
2007 2 1 54132 -0.1126 0.4639 0.02217
2007 2 2 54133 -0.1111 0.4664 0.02169
2007 2 3 54134 -0.1095 0.4688 0.02103
2007 2 4 54135 -0.1079 0.4712 0.02020
2007 2 5 54136 -0.1063 0.4736 0.01925
2007 2 6 54137 -0.1046 0.4759 0.01824
2007 2 7 54138 -0.1028 0.4783 0.01725
2007 2 8 54139 -0.1011 0.4806 0.01634
2007 2 9 54140 -0.0992 0.4829 0.01556
2007 2 10 54141 -0.0974 0.4852 0.01494
2007 2 11 54142 -0.0954 0.4874 0.01447
2007 2 12 54143 -0.0935 0.4896 0.01414
2007 2 13 54144 -0.0915 0.4918 0.01390
2007 2 14 54145 -0.0894 0.4940 0.01365
2007 2 15 54146 -0.0873 0.4961 0.01328
2007 2 16 54147 -0.0852 0.4983 0.01266
2007 2 17 54148 -0.0830 0.5003 0.01172
2007 2 18 54149 -0.0808 0.5024 0.01042
2007 2 19 54150 -0.0785 0.5044 0.00883
2007 2 20 54151 -0.0763 0.5064 0.00709
2007 2 21 54152 -0.0739 0.5084 0.00540
2007 2 22 54153 -0.0715 0.5103 0.00390
2007 2 23 54154 -0.0691 0.5122 0.00269
2007 2 24 54155 -0.0667 0.5140 0.00178
2007 2 25 54156 -0.0642 0.5159 0.00110
2007 2 26 54157 -0.0617 0.5177 0.00057
2007 2 27 54158 -0.0591 0.5194 0.00007
2007 2 28 54159 -0.0566 0.5211 -0.00046
2007 3 1 54160 -0.0539 0.5228 -0.00110
2007 3 2 54161 -0.0513 0.5245 -0.00187
2007 3 3 54162 -0.0486 0.5261 -0.00278
2007 3 4 54163 -0.0459 0.5277 -0.00379
2007 3 5 54164 -0.0431 0.5293 -0.00486
2007 3 6 54165 -0.0404 0.5308 -0.00595
2007 3 7 54166 -0.0375 0.5323 -0.00698
2007 3 8 54167 -0.0347 0.5338 -0.00791
2007 3 9 54168 -0.0318 0.5352 -0.00872
2007 3 10 54169 -0.0290 0.5365 -0.00938
2007 3 11 54170 -0.0260 0.5379 -0.00992
2007 3 12 54171 -0.0231 0.5391 -0.01035
2007 3 13 54172 -0.0201 0.5404 -0.01075
2007 3 14 54173 -0.0171 0.5416 -0.01122
2007 3 15 54174 -0.0141 0.5428 -0.01186
2007 3 16 54175 -0.0111 0.5439 -0.01281
2007 3 17 54176 -0.0081 0.5449 -0.01412
2007 3 18 54177 -0.0050 0.5460 -0.01578
2007 3 19 54178 -0.0019 0.5470 -0.01769
2007 3 20 54179 0.0012 0.5479 -0.01964
2007 3 21 54180 0.0043 0.5488 -0.02145
2007 3 22 54181 0.0075 0.5497 -0.02296
2007 3 23 54182 0.0107 0.5505 -0.02412
2007 3 24 54183 0.0138 0.5512 -0.02498
2007 3 25 54184 0.0170 0.5519 -0.02564
2007 3 26 54185 0.0202 0.5526 -0.02622
2007 3 27 54186 0.0234 0.5532 -0.02686
2007 3 28 54187 0.0267 0.5538 -0.02763
2007 3 29 54188 0.0299 0.5544 -0.02859
2007 3 30 54189 0.0332 0.5548 -0.02977
2007 3 31 54190 0.0364 0.5553 -0.03112
2007 4 1 54191 0.0397 0.5557 -0.03255
2007 4 2 54192 0.0430 0.5560 -0.03394
2007 4 3 54193 0.0463 0.5563 -0.03517
2007 4 4 54194 0.0496 0.5566 -0.03620
2007 4 5 54195 0.0529 0.5568 -0.03702
2007 4 6 54196 0.0562 0.5569 -0.03759
2007 4 7 54197 0.0595 0.5570 -0.03793
2007 4 8 54198 0.0628 0.5571 -0.03809
2007 4 9 54199 0.0661 0.5571 -0.03821
2007 4 10 54200 0.0694 0.5570 -0.03826
2007 4 11 54201 0.0728 0.5569 -0.03842
2007 4 12 54202 0.0761 0.5568 -0.03886
2007 4 13 54203 0.0794 0.5566 -0.03964
2007 4 14 54204 0.0827 0.5564 -0.04069
2007 4 15 54205 0.0860 0.5561 -0.04202
2007 4 16 54206 0.0894 0.5558 -0.04348
2007 4 17 54207 0.0927 0.5554 -0.04489
2007 4 18 54208 0.0960 0.5550 -0.04610
2007 4 19 54209 0.0993 0.5545 -0.04694
2007 4 20 54210 0.1026 0.5540 -0.04743
2007 4 21 54211 0.1059 0.5534 -0.04764
2007 4 22 54212 0.1092 0.5528 -0.04770
2007 4 23 54213 0.1125 0.5521 -0.04774
2007 4 24 54214 0.1158 0.5514 -0.04793
2007 4 25 54215 0.1190 0.5506 -0.04833
2007 4 26 54216 0.1223 0.5498 -0.04894
2007 4 27 54217 0.1255 0.5489 -0.04971
2007 4 28 54218 0.1288 0.5480 -0.05057
2007 4 29 54219 0.1320 0.5470 -0.05144
2007 4 30 54220 0.1352 0.5460 -0.05237
2007 5 1 54221 0.1384 0.5450 -0.05318
2007 5 2 54222 0.1416 0.5438 -0.05388
2007 5 3 54223 0.1448 0.5427 -0.05439
2007 5 4 54224 0.1480 0.5415 -0.05472
2007 5 5 54225 0.1511 0.5402 -0.05492
2007 5 6 54226 0.1543 0.5389 -0.05502
2007 5 7 54227 0.1574 0.5376 -0.05510
2007 5 8 54228 0.1605 0.5362 -0.05523
2007 5 9 54229 0.1636 0.5348 -0.05548
2007 5 10 54230 0.1666 0.5333 -0.05596
2007 5 11 54231 0.1697 0.5318 -0.05672
2007 5 12 54232 0.1727 0.5302 -0.05773
2007 5 13 54233 0.1757 0.5286 -0.05888
2007 5 14 54234 0.1787 0.5269 -0.05998
2007 5 15 54235 0.1817 0.5252 -0.06092
2007 5 16 54236 0.1846 0.5234 -0.06153
2007 5 17 54237 0.1876 0.5216 -0.06171
2007 5 18 54238 0.1905 0.5198 -0.06151
2007 5 19 54239 0.1933 0.5179 -0.06112
2007 5 20 54240 0.1962 0.5160 -0.06068
2007 5 21 54241 0.1990 0.5140 -0.06030
2007 5 22 54242 0.2018 0.5120 -0.06012
2007 5 23 54243 0.2046 0.5099 -0.06007
2007 5 24 54244 0.2074 0.5078 -0.06023
2007 5 25 54245 0.2101 0.5056 -0.06058
2007 5 26 54246 0.2128 0.5034 -0.06094
2007 5 27 54247 0.2154 0.5012 -0.06124
2007 5 28 54248 0.2181 0.4989 -0.06142
2007 5 29 54249 0.2207 0.4966 -0.06145
2007 5 30 54250 0.2233 0.4943 -0.06133
2007 5 31 54251 0.2258 0.4919 -0.06107
2007 6 1 54252 0.2283 0.4894 -0.06065
2007 6 2 54253 0.2308 0.4870 -0.06012
2007 6 3 54254 0.2333 0.4844 -0.05955
2007 6 4 54255 0.2357 0.4819 -0.05905
2007 6 5 54256 0.2381 0.4793 -0.05873
2007 6 6 54257 0.2404 0.4767 -0.05864
2007 6 7 54258 0.2428 0.4740 -0.05879
2007 6 8 54259 0.2450 0.4713 -0.05914
2007 6 9 54260 0.2473 0.4686 -0.05956
2007 6 10 54261 0.2495 0.4658 -0.06009
2007 6 11 54262 0.2517 0.4630 -0.06053
2007 6 12 54263 0.2538 0.4602 -0.06072
2007 6 13 54264 0.2559 0.4573 -0.06062
2007 6 14 54265 0.2580 0.4544 -0.06022
2007 6 15 54266 0.2600 0.4514 -0.05960
2007 6 16 54267 0.2620 0.4484 -0.05890
2007 6 17 54268 0.2639 0.4454 -0.05823
2007 6 18 54269 0.2658 0.4424 -0.05767
2007 6 19 54270 0.2677 0.4393 -0.05715
2007 6 20 54271 0.2695 0.4362 -0.05678
2007 6 21 54272 0.2712 0.4331 -0.05650
2007 6 22 54273 0.2730 0.4299 -0.05628
2007 6 23 54274 0.2747 0.4268 -0.05602
2007 6 24 54275 0.2763 0.4235 -0.05575
2007 6 25 54276 0.2779 0.4203 -0.05533
2007 6 26 54277 0.2794 0.4170 -0.05474
2007 6 27 54278 0.2809 0.4137 -0.05397
2007 6 28 54279 0.2824 0.4104 -0.05302
2007 6 29 54280 0.2838 0.4071 -0.05192
2007 6 30 54281 0.2852 0.4037 -0.05069
2007 7 1 54282 0.2865 0.4003 -0.04950
2007 7 2 54283 0.2877 0.3969 -0.04840
2007 7 3 54284 0.2890 0.3934 -0.04755
2007 7 4 54285 0.2901 0.3900 -0.04705
2007 7 5 54286 0.2912 0.3865 -0.04679
2007 7 6 54287 0.2923 0.3830 -0.04674
2007 7 7 54288 0.2933 0.3795 -0.04675
2007 7 8 54289 0.2943 0.3759 -0.04665
2007 7 9 54290 0.2952 0.3724 -0.04635
2007 7 10 54291 0.2960 0.3688 -0.04572
2007 7 11 54292 0.2968 0.3652 -0.04475
2007 7 12 54293 0.2976 0.3616 -0.04350
2007 7 13 54294 0.2983 0.3580 -0.04214
2007 7 14 54295 0.2989 0.3544 -0.04080
2007 7 15 54296 0.2995 0.3507 -0.03955
2007 7 16 54297 0.3000 0.3471 -0.03851
2007 7 17 54298 0.3005 0.3434 -0.03771
2007 7 18 54299 0.3009 0.3397 -0.03711
2007 7 19 54300 0.3013 0.3360 -0.03662
2007 7 20 54301 0.3016 0.3323 -0.03616
2007 7 21 54302 0.3018 0.3286 -0.03565
2007 7 22 54303 0.3020 0.3249 -0.03491
2007 7 23 54304 0.3021 0.3212 -0.03399
2007 7 24 54305 0.3022 0.3174 -0.03291
2007 7 25 54306 0.3022 0.3137 -0.03171
2007 7 26 54307 0.3022 0.3100 -0.03041
2007 7 27 54308 0.3020 0.3062 -0.02906
2007 7 28 54309 0.3019 0.3025 -0.02769
2007 7 29 54310 0.3016 0.2987 -0.02648
2007 7 30 54311 0.3013 0.2950 -0.02548
2007 7 31 54312 0.3010 0.2913 -0.02475
2007 8 1 54313 0.3006 0.2875 -0.02439
2007 8 2 54314 0.3001 0.2838 -0.02428
2007 8 3 54315 0.2995 0.2800 -0.02432
2007 8 4 54316 0.2989 0.2763 -0.02438
2007 8 5 54317 0.2982 0.2726 -0.02433
2007 8 6 54318 0.2975 0.2689 -0.02406
2007 8 7 54319 0.2967 0.2651 -0.02354
2007 8 8 54320 0.2959 0.2614 -0.02282
2007 8 9 54321 0.2949 0.2577 -0.02195
2007 8 10 54322 0.2939 0.2541 -0.02109
2007 8 11 54323 0.2929 0.2504 -0.02030
2007 8 12 54324 0.2918 0.2467 -0.01965
2007 8 13 54325 0.2906 0.2431 -0.01923
2007 8 14 54326 0.2893 0.2394 -0.01902
2007 8 15 54327 0.2880 0.2358 -0.01889
2007 8 16 54328 0.2867 0.2322 -0.01880
2007 8 17 54329 0.2852 0.2286 -0.01875
2007 8 18 54330 0.2837 0.2250 -0.01862
2007 8 19 54331 0.2821 0.2215 -0.01835
2007 8 20 54332 0.2805 0.2180 -0.01788
2007 8 21 54333 0.2788 0.2145 -0.01715
2007 8 22 54334 0.2770 0.2110 -0.01622
2007 8 23 54335 0.2752 0.2075 -0.01517
2007 8 24 54336 0.2733 0.2041 -0.01415
These predictions are based on all announced leap seconds.
CELESTIAL POLE OFFSET SERIES:
NEOS Celestial Pole Offset Series
MJD dpsi error deps error
(msec. of arc)
53952 -65.34 .15 -6.25 .34
53953 -65.04 .19 -6.08 .34
53954 -64.74 .19 -5.92 .34
53955 -64.57 .24 -5.85 .34
53956 -64.52 .18 -5.77 .34
53957 -64.63 .18 -5.62 .34
53958 -64.98 .18 -5.54 .34
IAU2000A Celestial Pole Offset Series
MJD dX error dY error
(msec. of arc)
53952 -0.074 0.060 -0.269 0.340
53953 -0.059 0.076 -0.229 0.340
53954 -0.060 0.076 -0.226 0.340
53955 -0.074 0.095 -0.248 0.340
53956 -0.093 0.072 -0.280 0.340
53957 -0.099 0.072 -0.299 0.340
53958 -0.095 0.072 -0.290 0.340
The IERS Conventions recommended software to predict celestial pole
offsets is available at ftp://maia.usno.navy.mil/conventions/chapter5/
ceppred.f and software for the calculation of the dX and dY with
respect to IAU2000A Nutation/Precession Theory can be found at the
web site in section chapter 5.
**************************************************************************
Important Notices - Important Notices - Important Notices
**************************************************************************
A positive leap second was introduced in UTC on 31 December 2005.
The sequence of dates of the UTC second markers will be:
2005 December 31, 23h 59m 59s
2005 December 31, 23h 59m 60s
2006 January 1, 0h 0m 0s
The difference between UTC and the International Atomic Time (TAI) is:
from 1999 January 1, 0h UTC, to 2006 January 1 0h UTC : UTC-TAI = - 32s
from 2006 January 1, 0h UTC, until further notice : UTC-TAI = - 33s
**************************************************************************
Important Notice - IAU 2000 Resolution Compliancy Information
**************************************************************************
Resolutions passed at the 24th General Assembly of the International
Astronomical Union (IAU) recommend the implementation of a number of new
procedures concerning the transformation between the celestial and
terrestrial reference systems. Information regarding these procedures
is available in Chapter 5 of the IERS Conventions 2003 available at
.
With these resolutions, beginning on 1 January 2003, IERS Bulletins A and
B will publish new products in addition to those already published. These
products will include the celestial pole offsets X_obs-X_IAU2000A
and Y_obs-Y_IAU2000A where
X_obs and Y_obs are the observed X, Y coordinates of the Celestial
Intermediate Pole in the Geocentric Celestial Reference System, and
X_IAU2000A and Y_IAU2000A are the celestial pole coordinates provided by
using the IAU2000A Precession-Nutation theory.
It is expected that Celestial Pole offsets related to the IAU1980 Nutation
Theory will continue to be published through 15 January 2006. The new
celestial pole offsets related to the new IAU2000A Precession-Nutation
theory will be produced in a separate data file as well as appended to
to this file.
**************************************************************************
Important Notice - IAU 2000 Resolution Compliancy Information
**************************************************************************